Book shelf loudspeaker



FIG. 1 is a front elevational view of a book shelf loudspeaker, showing my new design, the rear thereof being void of ornamentation;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image thereof;

FIG. 3 is a top plan view thereof, the bottom being void of ornamentation; and,

FIG. 4 is a top, front and left side perspective view thereof. 

The ornamental design for a book shelf loudspeaker, as shown and described. 